798 JOURNAL, BOMBAY NATURAL HISTORY SOCIETY, Vol. XIV. 



Colour. — After several months' immersion in alcohol the colour is a uniform 

 dark brown above (the exact shade intermediate between the bistre and 

 burnt umber of Ridgway), and a lighter brown (between wood brown and 

 cinnamon) beneath. Fur everywhere blackish at base, ears and membranes 

 blackish brown, the wing faintly edged with white. 



Skull and Teeth. — The skull resembles that of Pipistrellus abramus in 

 general size and form, but the rostral portion is very noticeably broader and 

 shorter, Audital buUaa smaller than in P. ahramiis, but not different in form. 



Teeth as in Pipistrellus abramus, hnt raor^ tohnsi. 



Measurements. — External measurement of type: Total length, 78 mm. 

 (80) ; ' head and body, 48 (48) ; tail, 30 (32) ; tibia, 12 (11-6) ; foot, 6-8 (6-6) ; 

 penis, 9 ; forearm, 31-6 (32) ; thumb, 5 (5*4) ; second digit, 31 (30) ; third 

 digit, 52 (55) ; fourth digit, 47 (51) ; fifth digit, 40 (42) ; ear from meatus, 

 11*4 (12) ; ear from crown, 9 (9) j width of ear, 10"6 (10'6) ; tragus (anterior 

 border), 3 (4). 



Cranial measurements of type : Greatest length, 12-6 mm. ; basal length, 

 12 ; basilar length, 9 ; zygomatic breadth, 9 ; least interorbital breadth, 3'6 ; 

 greatest length of braincase, 7"8 ; greatest breadth of braincase above roots 

 of zygomata, 7 ; mandible, 10 ; maxillary toothrow (exclusive of incisors), 5 ; 

 mandibular toothrow (exclusive of incisors), 5. 



Specimens examined.— T-wo (in alcohol), both from the type locality. 



Remarks. — Pipistrellus camortce appears to be a well-marked species related 

 more closely to P. abramus than to any other. It is undoubtedly the bat 

 which Dobson recorded from the Nicobars in the list of specimens of Vesp&- 

 ruga abramus in the collection of the East Indian Museum. Probably it is 

 also the species named Vesperugo nicobaricus by Fitzinger, but afterwards 

 regarded by Zelebor as V. tenuis. 



Genus HIPPOSIDEROS Leach. 

 HiPPOSiDEKOS NICOBARUL.E, new species. 

 1876. Phyllorhina bicolor Dobson, Monogr. Asiat. Chiropt., p. 70 (Nicobars). 



r^ije.— Adult male (in alcohol), No. 111874, U.S.N.M. CoUected on Little 

 Nicobar Island, March 2, 1901, by Dr. ^Y. L. Abbott. 



Characters. — Closely related to Hipposideros bicolor and E. fulvus, with 

 which it agrees in all general external features. Size much less than that of 

 E. fulva and slightly greater than in E. bicolor. Terminal erect portion of 

 noseleaf broader than in E. bicolor ; skull more inflated in front of orbits 

 and with broader palate aad interpterygoid region, 



Noseleaf. — The noseleaf is slightly larger than that of Eipposideros bicolor, 

 but not essentially different in form. The posterior erect portion is slightly 

 broader, but the difference may be in part sexual, as the only specimen of 

 E. bicolor at hand is a female. 



Colour. — Two distinct colour phases occur. In the dark phase, represented by 

 the type, the hairs of the back are seal brown through terminal third, light 



' Meaaurem«nts in paienthesis are those of an adult female from the type locality. 



